Chemistry Semester 1 Exam Review

Front

What type of bond is formed between cobalt (Co) and fluorine (F) based on electronegativities?

Back

Ionic bond is formed due to the significant difference in electronegativities between Co and F.

Front

What is the metric unit of volume?

Back

The metric unit of volume is Liter (L).

Front

What is the central core of an atom that contains protons and neutrons called?

Back

It is called the Nucleus.

Front

Which atomic model depicts electrons in their energy levels (shells)?

Back

The Bohr Model depicts electrons in their energy levels.

Front

If an oxygen atom has 8 protons and 10 electrons, what is its charge?

Back

The charge is O²⁻.

Front

What is electronegativity?

Back

Electronegativity is the ability of an atom to attract electrons in a chemical bond.

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

Front

What is the difference between polar covalent and non-polar covalent bonds?

Back

Polar covalent bonds have unequal sharing of electrons, while non-polar covalent bonds have equal sharing.

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and determines the element's identity.

Front

What is a Lewis Dot Structure?

Back

A Lewis Dot Structure is a diagram that shows the bonding between atoms and the lone pairs of electrons.